Burials at the Basilica of St. Sernin

Saturnin of Toulouse (, , , , and , , and ) was one of the "Apostles to the Gauls" sent out (probably under the direction of Pope Fabian, 236–250) during the consulate of Decius and Gratus (250–251) to Christianise Gaul after the persecutions under Emperor Decius had all but dissolved the small Christian communities. Fabian sent out seven bishops from Rome to Gaul to preach the Gospel: Gatien to Tours, Trophimus to Arles, Paul to Narbonne, Saturnin to Toulouse, Denis to Paris, Austromoine to Clermont, and Martial to Limoges. His feast day is 29 November.

Honoratus (; – 6 January 429) was the founder of Lérins Abbey who later became an early Archbishop of Arles. He is honored as a saint in the Catholic and Eastern Orthodox Churches.

Bishop of Toulouse